Solar still.



i 4: 1" 2 o g N u e n `l 6 l I l l s L.... x n I 0 C' l l o i l "LJ I l l I l l O a l l l l n l a l l I Il A A. M. BROSIUB.

SOLAR STILL.

APrLxoA'non man 001.15. xeon.

Patented Feb.7, 1911.

UNI'JEI) S'IATES PATEN T OFlilQE. l ALBPIHI' .M BROSYUS, 0F BALlIhiORI, MARYLAND. t l t SOLAR STILI- 983,424. f #permet-t0n 0f retten hielt. I Patented Feb. 7 1911. 'Appio-nes imi mieter is, im. seriai l. tiene.

To all whom it may concern: tlm air which entane bothe funnel sind Bc 4it. known that I, Awinrr M. llimsirs, passes nlong n conduit or x which coinniun citizen of tht` United Stuten of America nicntcs h incenso! thoslot with the interior residing at the nity of Baltimora', hliitc 'itr of the ciuinbtr. The primary uw Qf I0 l Maryland, huvc inwntml uci-tuin new and the slot iii to admit the entering ra .d alr. nsolnl Ini imminente in Subir Stills, of mid distribute itin a thin current over tbcv which the )allowing is aspccitit'stion. eulface of the liquid, en that as it passes is invention rcluteit to su tpparntns it is licatctl and its capacity lorsu pcrtm by manna of lwhich solar heat is utilized moisture is increased, whereby it il: sl v1e lli the evaporation of liquida particulsrl the liquid in the f erni ot .vaporw water and to an apparatus by which suc paseos u the due with the sii' nud is uliq when so evaporated, are condensed enscd, h on the surfaces of the to ucc the liquid in s puriled state. l'cbsmbeg walls larid on ,wells ot the diie.

'Phe a paratuu may be so arranged that In the preferred embodiment ot my i|ils It tus ndgnaed water is delivered at an elevsntwti an elevated tank s'nd condenser are 'vatten higher than that st which the water u aed, the tlue is insulated so that condussto be evs ated is presented to the appstwii dim not take placa. until the vapor rsttis." us solar sncgy is mada to serve peaches the tank. For the purpose ot cstchs double ur It svaporatcs the liquid ing the li uid which may condense en the 75 sa to be disti ned elevataa the va ao that' inner aos of the roo! ef tha ehamhe, a head siilllcient for the distribu on of the have ,shown a trough running along the condensed liluid` ia developed. The head sidi. et the chamber beneath the lower thuis ohtainct in determined by the atrength ot the root. A pipe from thi! will of thi draft created inthe delivery pipe rind to u suitable receptacle, and in caes the als- Il 2l the length of time theJiquid. can be caused ysted tank is not to be used, the liiewbich tn i'egnain in the form ots vapor. It is also in this case acts as a condenser,is rained within the sco n o! my invention to collect to the saine receptacle.

condhieiiite-vl ifnliidiniiy siitable reservoir Referring tn hhdrswin:tliignlrrei 1 i: o w ina 'con nete vit or ai e eeva ion o c a ra ua. 'otbar suitable una by y an end view with a. polrzn of the cfliduit lbed it. eneral terms, tbe apparatus and the tine broken sway. Fih is a croconsisten! a so arlhcated box or receiving ew-tion through the end of t apparatus chamber having s transparent top, partit taken centrally ofthe tine. Fi. 4isa tion or roof, prsferabl Iinclined toward the msniary section on the line av o! Fig. N J5 lun. At one c nd of t ie box or chamber ie ahowingthe movable duct and t e slot with an inlet for nir, which I have shown prothtrvmovnl an. lvided h n rotary funnel which muy be An enilnxliment of my invention substanstljnntewith its iionth in the direction tiully in the form in which it has been built .t of the eind, Iloweyer, any other suitable and reduced vto practice is shown in the P 4. ineens for introducing sir muy be used. drawings. In these drawing, tbe ncsivown nesr the opposite extremity of the mi: chniiibcr A somewhat resembles a but? chamber is an upri ht tlm. of sutlicient cnltiirelhnt-bed and tionaittteofast'i'ttabls i|l. height to give a g natnml draft. The closure or box having a door 1 and tiptiglit liquid to be evaporated i'a admitted to -thin sides, preferably of material which alanis 19 s chamber and greferably maintained nt ii considerable resistance to the passage of slight depth. or the pu oso of holding limit. 'lhe fr'ont wall 2 is shown as of less thisliquid lo that: the resi ne if the crap linight than the ri-nr wall 3 and the top 4 i Wallon may bceal'il' removed, I linte shown .Hlm of the two iidea 4 are inclined. The u s shallow tray whit* i nis he u! cheap ninturmt! or top Il of the chuniher ls of suitable l rlal to destroyed sn re laced at short trans rent material, as glam, and as shown intervals, so that clesning he tray is not is im: ed so as to be as nearly as possible` necessa The trays are inserted and reat right angles to the general direction d moved irou h a slotlnear the hottoin ofthe the sims rays. Shown' as extending horlu chamber an this nl ot which is above and zontally along thtlower edge of one of the l" in its eral direction psrnllcl to .the surside walls 4 o! thc receiving chamber is a hes o .die liquid also serves -to distribute conduit E which. is removably secured .to

. vided for the condense the bide wall hy any suitable means, a eithercontinuousl'tor at intervals. The

hinges f at the top, and bolts t at the b ottoni. The conduit. E communicates with the interior of the receiving rliuinher by means of a slot F at. the base of the aide wall of the hitter, shown as extending the full length of such side wall. pan or other suitable receptacle C of horizontal extent such that it tits within the chamber and ver shallow in ioportion to its area covers tho bottoni of tie chamber and is removed and inserted through the alot F, the conduit being swung upward about its hinges to open the slot. for this purpose. Rcmovably mounted in an aperture in the -upper wall of thc conduit E to rotate thciein 1s an elbow funnel D extending upward vertically from the top of the conduit and lient at an angle 'so that its mouth opens horizontally. This funnel is provided with a handle oi' other suitable means 'i' for rotating it .-o that it faces the` wind. This may he ae` complished manually or 4b v a vant S attached to the funnel. The primary funetion of the slot F, while it serves as an aperture through which the pan t? may he removed, is to admit nir to the chamber from the conduit ll.' Leading from the exti'einirv of the chanih'er Amposite the funnel is an upri ht. tlue (l of su icieiit height to give a 5001i! natural draft from the chamber A,

ue to the expansion of the air and its dccreased weiglit ier unit of volume caused b the heat o the mm rays admitted thyrough the transparent root' ot' the chainber A. A suitable rece itacle Irina) be pro liquid and ii pipe 1*] leads to this chamber from the base of the ne G which, it will lic noted, is lient to prevent such moisture owing back into the chamber A. Another ,ipe which leads from a conductor J within the chamber serves to catch the condensation from the inner surface of the glass roof.

f it is desired to elevate the condensed liquid, the flue G is insulated, as indicated by dotted lines M and the tank or condenser h. also indicated by dotted lines, is provided. The insulation prevents condenaation on the .walls ot' the tlue and allows the moisture to be carried n i by the draft to the tank where it is ernalensed by suitable moana. Damper U und l verve to cloae the funnel and tlue at the will of the operator.

- In the operation of my device, to be the liquid evaporated is supplied to the pan C,

tunnel D is tut-net oivard the wind` either manually or h v means of a vane 8, or air 1s mtpplied to the inlet b v other Suitable int-uno. l'iie anni; raya pass thrqugli the transparent. roof or cover of the chamber A. and raise the tein icrature of the air which has been adn'iittet to inerease'its temperature ot' saturation or eapaeit' to receive.

inointure, whereby it is cuusei o take u the lit uid in the forni of vapor. and to this end. t te alot l" ari-ves to distribute tho air admitted in a layer over thc Surface of the liquid. As the air becomes heated its weight, per nuit of volume is decreased by ex ainsion and a.- it is lighter than the' outbit e air. it tends to rise tlirou h the funnel (l. creating;r a natural draft andzcarryiu the vapor upuai-d. to he either condense( on the allaof the thu: or in the tank N, dei pending on the arrangement. of thc a oaratne. either with au elevated tank N ant inulated tlue. or a hare tlue which serve as a condenser drainin, r into the lower tank L.

'lhe detail.-. and forni ot my ap iaratus are largely immaterial and ina)l e widely :hanged within the scope of my invention.

\\'liat l claim and desire to secure by Letters latent is:

l. ln a device for evaporating liquid,'e.

olar heated chamber for the liquid to be.

evaporated. the chamber having an air space over the liquidi and an outlet, an inlet funnel. a conduit to which the funnel leads extending along one aide of t-ho chamber and removably,secured thereto, the wall sepa. rating the conduit and the chamber being apertnrcd to admit nir to the chamber from ,the conduit. u `shallow pan .covering the bottoui of the still and of suitable dimensions to'be removed and admitted throu h the aperture when the conduit is removed'.z

2. In a still havingv a solar heated chainlier an upright tlue. and an inlet the 'alla of the flue being insulated. to passage of heat. a storage chain r or colidenser elevated above the solar heated chamber and communicating with the upper extn-inity of the tlue so that solar energ ia utilized to evaporate the li uid and furnish a head for distribution oft ic distillate.

Signed by me at Baltimore, this 14th day of October 1909.

ALBERT M. BROSI'UFJ.

Witnesses.: f 1

Euwano L. Das, J No. Mmm.

revent the Maryland, 'l 

